/**数字转中文，处理到万级别 */
const changeNum = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九']
const unit = ['', '十', '百', '千', '万']

/**
 * @param {Number} num
 * @returns {String}
 */
export function toChineseNum(num) {
    num = parseInt(num)
    let getWan = (temp) => {
        let strArr = temp.toString().split('').reverse()
        let newNum = ''
        for (var i = 0; i < strArr.length; i++) {
            newNum = (i === 0 && strArr[i] === 0 ? '' : (i > 0 && strArr[i] === 0 && strArr[i - 1] === 0 ? '' : changeNum[strArr[i]] + (strArr[i] === 0 ? unit[0] : unit[i]))) + newNum
        }
        return newNum
    }
    let overWan = Math.floor(num / 10000)
    let noWan = num % 10000
    if (noWan.toString().length < 4) noWan = '0' + noWan
    return overWan ? getWan(overWan) + '万' + getWan(noWan) : getWan(num)
}